When selecting mold frame materials, the following factors may be considered:

1. Mold size and structure: The size of the mold core needs to be determined based on the size and structure of the product, which in turn determines the size of the mold seat. The projected area of the product (including the mold cavity) determines the recommended size of the mold core, which in turn affects the selection of the mold seat. If the product is thin or has a large number of mold holes, it may be necessary to choose a larger mold core size to withstand greater pressure.

2. Strength and rigidity: Necessary strength and rigidity calculations are performed on the relevant parts of the mold to ensure that the selected mold frame can withstand the pressure during the forming process, especially for large molds, which is particularly important. The calculation of strength and rigidity can help verify whether the mold frame is suitable for specific applications.

3. Cost effectiveness: When designing mold frames, cost-effectiveness is usually considered, and standardized mold frames are selected as much as possible to reduce manufacturing costs and improve production efficiency. At the same time, the thickness standard of the template, material usage, and cost savings will also be considered.

4. Machinability of materials: The selected materials should have good machinability, so that cutting, milling, drilling and other processing operations can be smoothly carried out during the mold manufacturing process.

5. Corrosion resistance and wear resistance: The mold may come into contact with various chemicals during use, so the material should have good corrosion resistance. Meanwhile, due to the wear and tear of molds during the production process, wear resistance is also an important consideration factor.

6. Heat treatment performance: Some mold materials may require heat treatment to improve their hardness and durability, so the heat treatment performance of the material is also an important consideration factor.

7. Material source and economy: When selecting materials, it is also necessary to consider the source, price, and supply stability of the materials to ensure their economy and reliability.

In summary, the material selection of the mold frame is a process that comprehensively considers multiple factors, and the appropriate material needs to be determined based on specific mold design and application requirements.